<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:swe="http://www.opengis.net/swe/2.0" targetNamespace="http://www.opengis.net/swe/2.0" elementFormDefault="qualified" attributeFormDefault="unqualified" version="2.0.0">
    <annotation>
        <documentation>SWE Common Data Model schema for record data components. See requirements class http://www.opengis.net/spec/SWE/2.0/req/xsd-record-components/
        
        SWE Common is an OGC Standard.
        Copyright (c) 2010 Open Geospatial Consortium, Inc. All Rights Reserved. 
        To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
        </documentation>
    </annotation>
    <include schemaLocation="simple_components.xsd"/>
    <!-- ================================================= -->
    <element name="DataRecord" substitutionGroup="swe:AbstractDataComponent" type="swe:DataRecordType">
        <annotation>
            <documentation>Implementation of ISO-11404 Record datatype. This allows grouping (sequence) of data components which can themselves be simple types, records, arrays or choices</documentation>
        </annotation>
    </element>
    <complexType name="DataRecordType">
        <complexContent>
            <extension base="swe:AbstractDataComponentType">
                <sequence>
                    <element maxOccurs="unbounded" minOccurs="1" name="field">
                        <annotation>
                            <documentation>Definition of the field provided as a nested data component. The field can be scalar or can itself be an aggregate such as a record, choice or array</documentation>
                        </annotation>
                        <complexType>
                            <complexContent>
                                <extension base="swe:AbstractDataComponentPropertyType">
                                    <attribute name="name" type="NCName" use="required"/>
                                </extension>
                            </complexContent>
                        </complexType>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="DataRecordPropertyType">
        <sequence minOccurs="0">
            <element ref="swe:DataRecord"/>
        </sequence>
        <attributeGroup ref="swe:AssociationAttributeGroup"/>
    </complexType>
    <complexType name="DataRecordPropertyByValueType">
        <sequence>
            <element ref="swe:DataRecord"/>
        </sequence>
    </complexType><!-- ================================================= -->
    <element name="Vector" substitutionGroup="swe:AbstractDataComponent" type="swe:VectorType">
        <annotation>
            <documentation>Implementation of a mathematical vector composed of a list of scalar coordinates expressed in the mandatory reference frame.</documentation>
        </annotation>
    </element>
    <complexType name="VectorType">
        <complexContent>
            <extension base="swe:AbstractDataComponentType">
                <sequence>
                    <element maxOccurs="unbounded" minOccurs="1" name="coordinate">
                        <annotation>
                            <documentation>Definition of the coordinate provided as a data component with a numerical representation</documentation>
                        </annotation>
                        <complexType>
                            <complexContent>
                                <extension base="swe:AnyNumericalPropertyType">
                                    <attribute name="name" type="NCName" use="required"/>
                                </extension>
                            </complexContent>
                        </complexType>
                    </element>
                </sequence>
                <attribute name="referenceFrame" type="anyURI" use="required">
                    <annotation>
                        <documentation>Frame of reference (usually spatial) with respect to which the coordinates of this vector are expressed. A reference frame anchors a vector value to a real world datum.</documentation>
                    </annotation>
                </attribute>
                <attribute name="localFrame" type="anyURI" use="optional">
                    <annotation>
                        <documentation>Frame of reference whose origin is located by the coordinates of this vector</documentation>
                    </annotation>
                </attribute>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="VectorPropertyType">
        <sequence minOccurs="0">
            <element ref="swe:Vector"/>
        </sequence>
        <attributeGroup ref="swe:AssociationAttributeGroup"/>
    </complexType>
    <complexType name="VectorPropertyByValueType">
        <sequence>
            <element ref="swe:Vector"/>
        </sequence>
    </complexType>
</schema>